The diesel turns black very quickly; its colority is greater than 3.5. What’s the reason?
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As the title suggests, when diesel is sampled from a pipeline and left there for over ten minutes, its color can change from light yellow to brown. I’m not sure why this happens; those who have experienced this, please share their insights
There may be several reasons for diesel to darken rapidly: 1. The diesel contains unstable substances or impurities that oxidize quickly when exposed to air. 2. Carbon buildup or rust inside the pipeline causes diesel contamination. 3. The quality of diesel itself is poor, containing a high amount of heavy components and impurities. 4. Improper storage conditions, such as high temperature and humidity, accelerate the denaturation of diesel. It is recommended to check the source and storage conditions of the diesel; if necessary, filter it or replace it with diesel of better quality. At the same time, regular cleaning of the pipes is also an important measure to ensure diesel quality. .
The unsaturated hydrocarbons in them react with oxygen in the air to form large molecular substances, and even gums; as a result, the color can change from light yellow to brown
It is mainly because diesel contains unstable substances or impurities, which oxidize rapidly upon contact with air. Such as olefins, etc. The reaction depth can be increased appropriately to ensure thorough reaction of the olefinic compounds.